Dynafit Low Tech Race 105+ Manual Lock — Review

The Dynafit Low Tech Race 105+ Manual Lock is a purpose-built skimo race binding aimed at athletes who value uphill speed, clean transitions, and a firm, direct feel on the descent. At a claimed 134 g per binding (with brake) and with an ISMF‑compliant manual lock, it is unapologetically minimal yet impressively refined.

What stands out

Ultralight (134 g per binding) with 68 mm brake: every gram saved helps on steep, long climbs.
ISMF‑compliant manual lock: deliberate, race‑ready lock mode for toe piece security.
Ice Breaker pins: help clear ice/snow from inserts for more reliable step‑in.
Crampon slot + Speed Switch brake: quick, one‑hand integration during transitions.
Low stand height & long excenter: precise power transfer and consistent exit behavior.
Optional 20 mm adjustment plate: adds heel length range for multiple boots.
Built in Germany: 7075 aluminum, stainless steel hardware, technical plastics.

On‑snow performance

Ascents: Extremely efficient thanks to the featherweight build and low stack. Step‑in is reassuring even in cold mornings; the toe holds firmly when locked for racing.
Descents: The ride is taut and direct. Minimal elastic travel means precision over plushness; pair with the right ski and boot to avoid harshness in choppy snow. The fixed, non‑adjustable release favors consistency over customization.

Pros and cons

Pros: class‑leading weight; ISMF manual lock; crisp power transfer; smart details (Ice Breaker pins, Speed Switch brake).
Cons: fixed release (no DIN adjustment); limited elasticity; narrow brake option (68 mm); less forgiving in rough conditions than touring/freeride‑oriented tech bindings.

Specs and what they mean

Type of binding: Tech (race skimo)
- Pin/tech interface prioritizes low weight and efficiency; the norm for skimo competition.
DIN / release value: Fixed (non‑adjustable)
- Lateral/vertical release are factory‑set for racing; consistent, but not tunable to rider weight/style.
Elastic travel: Minimal (not specified)
- Less “give” to absorb shocks; ultra‑precise feel, less forgiveness in variable snow.
Brake width: 68 mm
- Suited to narrow race skis; confirm the brake clears your ski waist.
Weight: 134 g per binding
- Extremely low; reduces fatigue and speeds transitions.
Compatibility: Tech‑insert boots; not ISO 5355 alpine
- Works with pin‑insert boots; optional plate adds 20 mm heel travel; not for flat alpine soles.
Materials: 7075 aluminum, stainless steel, POM plastic
- High strength‑to‑weight with durability; engineered and made in Germany.

Comparisons

ATK Trofeo/Trofeo Plus: similarly race‑focused; ATK offers variants with different fixed spring strengths and sometimes more adjustability, often slightly heavier with brakes.
Ski Trab Gara Titan WC: extremely light and stiff; renowned machining and tight tolerances, a comparable race feel with differing brake options.
Plum R170: a touch heavier but very robust; minimalist and often leash‑only, appealing to purists.

The LTR 105+ Manu excels with ISMF compliance, ice‑shedding pins, and a neatly integrated brake/speed switch. If you need adjustable DIN or more elastic travel, look to light touring tech or hybrid bindings instead.

Key takeaways

Ultra‑light race tool: built for maximum uphill efficiency.
Fixed release: consistent for racing, not user‑adjustable.
Best on narrow race skis with precise tech‑insert boots.

Frequently asked questions

Q: Who is the Low Tech Race 105+ Manual Lock for?
A: Primarily skimo racers and fast‑and‑light trainers. You get a super‑light, direct binding that excels in transitions and efficiency, without adjustable DIN.

Q: Can I use it on wider skis?
A: The stock brake is 68 mm, optimized for narrow race skis. For wider skis, choose a touring tech binding with an appropriate brake width.

Q: How about safety and release?
A: Release values are factory‑fixed and elastic travel is minimal. That delivers consistency for racing but less customization and forgiveness than adjustable touring/freeride bindings.

Q: Is there heel length adjustment?
A: Yes—with the optional adjustment plate you get 20 mm of heel travel, handy if you switch between boots or need mount flexibility.

Verdict

The Dynafit Low Tech Race 105+ Manual Lock is a laser‑focused race binding: fast, firm, and consistent. If ISMF compliance, manual lock, and the lowest possible weight sit atop your priority list, it’s a top pick. If you want more elasticity, DIN adjustability, or broader brake options, consider a touring or hybrid tech binding.